If you do a thing over and over again, you will tend to become good with it.
Repeating the same sermon each Sunday and doing a similar praying ritual over and over again will make you better.
If you see a movie or read a book once, you’ll discover many things. Doing it again and again after some years pass will make you an expert in it.
It’s like taking a PhD.
In conclusion, I think it’s a good thing that some things tend to repeat.